Quiz #3

Heavy and Costly

A project manager is considering materials for a sanitary system, weighing the advantages and disadvantages of stainless-steel pipes. What is a potential drawback of using stainless steel pipes in a sanitary system?

Single Hub, Double Hub and Hubless

A plumbing contractor is discussing cast iron pipes for a drainage system with a client. What distinguishes the types of cast iron pipes commonly used in drainage systems?

To carry water from the building gutter to the downspout.

A homeowner is discussing rainwater drainage with a contractor. What is the function of a leader in the context of building gutters?

The unobstructed vertical distance through the free atmosphere.

What best describes an “air gap, drainage” in the context of plumbing?

To maintain the alignment and avoid leakage.

A construction team is installing vertical piping in a new building. Why is it necessary to secure vertical pipes at sufficiently close intervals and ensure that stacks are properly supported at their bases.

It can be designed and tested to meet any load conditions as required for large irrigation projects.

A master plumber is selecting materials for a large irrigation project and is considering reinforced concrete pipes (RCP). What is the key characteristics of RCP that makes is suitable for storm sewers and large irrigation projects?

To retain grease from kitchen sink or other fixtures.

A restaurant owner is considering installing a grease trap in the kitchen. What is the primary purpose of a grease trap?

Expensive and poor tolerance to high temperature.

A civil engineer is considering materials for a drainage system, evaluating HDPE Pipes for their pros and cons. What is a potential disadvantage of using HDPE pipes in drainage system?

Floor drains and roof drains.

What are the common types of drains used in buildings?

An approved tank or pit for receiving sewage or wastewater below the normal grade.

What best describes a sump in the context of sewage and wastewater management?

To prevent pressure changes in the stacks by connecting it to an adjacent vent stack.

A plumber is explaining the purpose of yoke vent in a plumbing system to a homeowner. What is the primary function of a yoke vent?

Conveying fecal matter and wastewater horizontally.

Which of the following is not a primary purpose of a soil stack pipe?

Risk of leaks and misalignment in the piping system.

During a routine inspection, a building maintenance team discovers that the horizontal piping lacks adequate support, resulting in sagging. What potential issue could arise from the inadequate support of horizontal pipes?

1st Chamber

A part of a septic tank wherein most of the bacteria digestion happens.

To prevent backflow of sewer gases into the home.

A homeowner is renovating their bathroom and installing new plumbing fixtures. Why is it necessary to separately trap each plumbing fixture, except those with integral traps?

15 meters

What is the maximum distance of cleanout within building drain or building sewer?

To facilitate drainage from a roof through a wall or parapet.

What is the main purpose of a scupper drain?

Inadequate distribution of effluent in the drain field.

In an on-site treatment and on-site disposal, a homeowner notices lush, green patches of grass over their septic drain field, while the surrounding area is dry. What could be a likely explanation for this phenomenon?

A physical separation, such as low inlet in the indirect waste receptor.

What best describes an “airbreak” in the context of plumbing?

Schedule immediate siphoning of the septic tank.

A property owner experiences frequent backflows in their plumbing system and upon inspection, they find that the septic tank is full. What action should they take to address the issue?

Scum

It is the organic matter that floats on top of the fluids inside the septic vault.

To facilitate the separation of settleable solids from liquids.

In a stormwater system, what is the purpose of a receptacle designed to retain liquids for a sufficient period, allowing settleable material to deposit?

To provide a convenient access point for inspection or cleaning.

A plumber is working on installing a new drainage system. Why is it essential to include a cleanout in the design of the pipe run?

Loss of water seal due to negative pressure.

A homeowner is concerned about potential issues with plumbing traps. What best describes “siphonage” in a plumbing system?

A cast-in-place or preformed concrete trench covered with grate.

What best describes a trench drain?

To facilitate the upward movement of effluent in the mound.

A homeowner is planning to install a septic system with a septic mound on their property. Why might they need to incorporate a pump into the system?

Avoiding the risk of explosion in confined spaces.

A homeowner learns that methane gas is produced inside their septic tank. What is the primary safety concern associated with the accumulation of methane gas in the septic system?

Providing additional support for the plumbing pipes.

A homeowner is curious about the functions of a vent pipe in their plumbing system. Which of the following is not a primary purpose of a vent pipe?

House Sewer

It is that part of a plumbing system extending from the house drain at a point of 0.60m from the outside face of the foundation wall of a building to the junction with the street sewer or to any point of discharge.

The portion of the drain between a trap and the vent.

What best describes the trap arm in a fixture drain?

Frequency of septic tank siphoning.

During a property inspection, a potential buyer discovers that the property has a septic tank system. What should the buyer inquire about to assess the condition and reliability of the septic tank system?

Direct drain connection and indirect drain connection.

What are the two types of drain connections commonly used in plumbing system?

Improper venting of the plumbing system

A homeowner notices gurgling sounds in their plumbing fixtures when they flush the toilets. What could be the cause of this issue in relation to the septic tank system?

Poor muffling capability

A construction project is evaluating materials for a drainage system, considering PVC for its advantages and disadvantages. What is a potential drawback of using PVC in drainage systems?

None since it is not allowed.

A homeowner in an urban area is considering installing a seepage pit for their wastewater disposal. What factor would likely influence the municipality’s / city’s decision on whether to allow the installation of a seepage pit?

Septic tank leakage due to cracks.

After a heavy rainfall, a homeowner observes a foul odor coming from the area around their septic tank. What is the likely cause of this odor?

Locating the tank in an area with good drainage.

A property owner is planning to install a new septic tank system. What factor should they consider ensuring proper functioning and longevity of the system?

To promote the efficient water drainage and prevent standing water.

A plumbing contractor is designing the layout for horizontal piping in a new construction project. Why is it crucial for all horizontal piping to run in practical alignment and maintain a uniform grade of not less than 2% slope?

To ensure proper treatment by specialized facilities.

A municipality has adopted a sewage treatment system with offsite treatment and offsite disposal. What is the primary purpose of transporting sewage to an offsite treatment facility?

To prevent sagging of pipes.

A plumber is designing a horizontal piping system for a building. Why is it crucial to support the horizontal pipes at sufficiently close intervals, with a maximum distance of 3 meters?

Vent pipe serving fixtures that are back-to-back.

A plumber is explaining the concept of unit vents to a homeowner. What defines unit vents in a plumbing system?

Capillary Action

It is an ability of water to flow through a thin medium even going against gravity.

90 degree elbow

Item 01

Long Sweep Elbow

Item 02

45 degree elbow

Item 03

Tee

Item 04

Coupling

Item 05

Reducer / Increaser

Item 06

Wye

Item 07

Double Wye

Item 08

Cleanout

Item 09

Cap

Item 10

Soil Stack

Item 01

Vent Stack

item 02

Relief Vent

Item 03

Circuit Vent

Item 04